What does string gauge even mean?

Gauge refers to the diameter of a string. Gauges are described in thousandths of an inch and can be found listed on the back of a string pack. Overall, string gauges are classified as: Extra light, Custom light, Light, Medium and Heavy

What is your experience Level?

Lighter - Easier to fret (important for beginners) and to bend. Better resonance under a lighter touch, common when first starting out. Heavier- Bigger sound provide more volume and resonance. Better tuning stability tays in tune longer.

Consider the body size of your guitar.

Lighter - Exert less tension and are typically recommended for smaller bodied guitars such as 0, 00, 000, and OM, plus all cutaway models Heavier - Exert more tension and are typically recommended for larger body sizes

What style of music do you play?

Lighter - Good choice for rock, folk, country, and blues style playing with a lighter attack (plucking) Heavier - Good choice for rock, country, and blues style playing with a harder attack

What sound are you going for?

Lighter - Offer appropriate volume and range for playing in an intimate setting. Heavier - Produces more volume and sustain. Great choice if you’re accompanied by other players.

Martin Strings Acoustic Guitar Strings 41y18ma550t

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

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Description

🎶 Strike the perfect chord with Martin’s bright, durable strings—because your sound deserves the spotlight.

ELEVATE YOUR SOUND - Join thousands of musicians who trust Martin strings to unlock their guitar’s true voice and stand out on stage or in the studio.
VERSATILE PLAYABILITY - Perfectly balanced medium gauge strings (.013-.056) designed for fingerpicking, strumming, and everything in between.
AUTHENTIC CRAFTSMANSHIP - Crafted by Martin, the trusted name in acoustic excellence, delivering consistent quality and tone every time.
LONG LASTING DURABILITY - Patented anti-corrosion coating ensures your strings stay fresh and reliable longer—play without interruption.
UNMATCHED BRIGHTNESS CLARITY - Experience vibrant, professional-grade tones that make your guitar sing in any genre.

Martin Strings Acoustic Guitar Strings (41Y18MA550T) are medium gauge (.013-.056) phosphor bronze strings engineered with a patented anti-corrosion treatment for extended lifespan. Designed to deliver bright, rich tones with excellent tuning stability, these strings suit a wide range of playing styles and genres. Trusted by professionals worldwide, they combine authentic craftsmanship with superior playability to elevate your acoustic guitar’s natural voice.

Specifications

ASIN	B07GTCQD9N
Best Sellers Rank	#20,312 in Musical Instruments ( See Top 100 in Musical Instruments ) #335 in Acoustic Guitar Strings
Body Material Type	phosphor bronze
Brand	Martin
Brand Name	Martin
Coating Description	coated
Colour	Bronze
Country of Origin	USA
Customer Reviews	4.7 out of 5 stars 6,499 Reviews
Finish Type	Bronze Plated
Global Trade Identification Number	00729789558259
Instrument	Acoustic Guitar
Item Type Name	Acoustic Guitar Strings
Item Weight	0.06 Pounds
Manufacturer	C. F. Martin & Co.
Manufacturer Part Number	41Y18MA550T
Material Type	phosphor bronze
Model Number	41Y18MA550T
String Gauge	Medium
String Material Type	Phosphor Bronze
UPC	729789558259

Reviews

S**S

sounds beautiful. will see how long it lasts

15.08.2023

A**R

Perfette per la mia seagull Peppino D'Agostino

Le mie corde preferite

26.06.2026

R**K

Feel

Excellent product!!!

17.02.2026

A**A

EXCELENTE CALIDAD Y PRECIO.

Tengo poco con ellas. Suenan muy bien. No son tóxicas, pregunté a MARTIN directamente y me respondieron que solo usan materiales que no tienen riesgos para la salud, lo hice porque leí un comentario de alguien preocupado porque deja manchados los dedos, lo cual a mi no me ha pasado. Lo único que no puedo precisar es cuanto duran en realidad, pues tengo poco con ellas. Estoy convencido de que fue una buena compra.

22.10.2021

D**H

They don't last long

Nice bright sound but after only 2-3 weeks they start to tarnish and lose a lot of brightness in the sound. I expected better

6.08.2023

B**Y

Great strings!

Love the rich sound and life of these strings?

6.05.2021

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5 days ago

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Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

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The MOLLE sheath is of exceptional quality. Very happy with my purchase.

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